can i fork it?
πŸ“ˆ seo & marketing

Lumar wants a subscription.
These cost $0.

5 free alternatives to Lumar, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.

Lumar vs Free Alternatives Matrix

Quick side-by-side comparison Β· $0/mo vs paid

AlternativeTypeLicenseWhere It RunsStarsHead-to-Head
SiteOne Crawleropen sourceMITLocalβ˜… 841Lumar vs SiteOne Crawler β†’
SEOnautopen sourceMITSelf-hostβ˜… 751Lumar vs SEOnaut β†’
CrawlSEOopen sourceMITSelf-hostβ˜… 507Lumar vs CrawlSEO β†’
FreeCrawlopen sourceMITLocalβ˜… 87Lumar vs FreeCrawl β†’
Crawlyfreeproprietary, freeLocalβ˜… $0 foreverLumar vs Crawly β†’

The picks

4 open source Β· 1 free to use Β· ranked by fit

  1. 01

    SiteOne Crawler

    open sourceMITLocal
    841jun 2026

    A proper desktop crawler with reports and a fix-first queue; no server, no URL tax, no frog.

    The catch vs Lumar

    It is a local single-machine crawler with no managed team collaboration, durable cloud history or enterprise operations layer.

    Install, platforms & data +
    platforms
    desktopclione-click install
    install
    Download a prebuilt desktop or CLI binary for Windows, macOS or Linux
    setup
    None for ordinary crawling; JavaScript rendering needs Chrome or Chromium, or the one-time headless-shell download
    engines
    Optional OpenAI, Anthropic, Gemini, vLLM, Ollama, LM Studio or any OpenAI-compatible endpoint
    your data
    Runs locally and writes project results plus HTML, JSON or text reports and exports to the user's disk
    checked
    2026-08-11
  2. 02

    SEOnaut

    open sourceMITSelf-host
    751may 2026

    A no-frills crawler that stores audits and sorts broken SEO plumbing by severity; bring Docker and MySQL.

    The catch vs Lumar

    It provides a straightforward self-hosted audit history but not Lumar's enterprise orchestration, distributed crawling or governance.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Docker Compose with MySQL 8.4, then expose the web UI behind HTTPS
    setup
    Docker, MySQL and a reverse proxy are required; its default exposed port is plain HTTP
    your data
    Sites, crawl results and audit history live in the self-hosted MySQL database
    checked
    2026-08-11
  3. 03

    CrawlSEO

    open sourceMITSelf-host
    507aug 2026

    Rankings, crawl history and alerts in one dashboard; free code, but Google OAuth and Postgres make setup a small infrastructure hobby.

    The catch vs Lumar

    It targets small sites and lacks Lumar's distributed crawl scale, enterprise governance, log analysis and managed operations.

    Install, platforms & data +
    platforms
    webself-hostedself-host, real ops
    install
    Docker Compose with PostgreSQL, then Google OAuth setup
    setup
    Google Cloud OAuth plus Docker/PostgreSQL; competitor data also needs a paid DataForSEO key
    engines
    Google Search Console and PageSpeed Insights; optional DataForSEO; MCP clients such as Claude Desktop, Claude Code and Cursor
    your data
    Projects, crawl runs, rankings and alerts live in a self-hosted PostgreSQL database; credentials and OAuth secrets live in environment configuration
    checked
    2026-08-11
  4. 04

    FreeCrawl

    open sourceMITLocal
    87jul 2026

    A young but finished desktop crawler with 200 checks, project diffs and every export in the cupboard; the star count has not caught up yet.

    The catch vs Lumar

    It is a single-machine desktop tool without Lumar's distributed scale, team governance, SLA or managed audit operations.

    Install, platforms & data +
    platforms
    desktopclione-click install
    install
    Windows installer or portable build, macOS DMG, or Linux AppImage, deb or rpm
    setup
    The prebuilt apps install normally, but the macOS build may require bypassing Gatekeeper for an unsigned application
    engines
    Optional OpenAI, Anthropic and local Ollama; optional GSC, GA4, PageSpeed, Ahrefs, Moz, Semrush, Majestic and MCP connections
    your data
    Local SQLite WAL project files (.seoproject), optionally AES-256-GCM encrypted; exports include Excel, CSV, JSON, XML, HTML, sitemaps, Google Sheets and BigQuery
    checked
    2026-08-11
  5. 05

    Crawly

    freeproprietary, freeLocal

    A native Mac crawler with unlimited pages and crawl diffs; Windows users are invited to admire it from afar.

    The catch vs Lumar

    It is Mac-only, has no JavaScript rendering and lacks Lumar's managed scheduling, collaboration, log analysis and enterprise-scale crawling.

    Install, platforms & data +
    platforms
    desktopone-click install
    install
    Download and install the native universal macOS app
    setup
    macOS only
    engines
    A local MCP server connects to Claude Code, Cursor, Codex, Windsurf and other MCP clients
    your data
    Crawl projects and history live in a local SQLite database on the Mac; there is no hosted account or cloud sync
    checked
    2026-08-11

Frequently Asked Questions

Direct answers Β· Lumar open-source replacements

What is the best free alternative to Lumar?+

The top free alternative to Lumar is SiteOne Crawler (open source, MIT). A proper desktop crawler with reports and a fix-first queue; no server, no URL tax, no frog. Other popular Lumar replacements include SEOnaut, CrawlSEO, FreeCrawl.

Can I self-host a free replacement for Lumar?+

Yes. Of the 5 free alternatives to Lumar, 2 can be self-hosted on your own server or local machine: SEOnaut (MIT), CrawlSEO (MIT).

Should I vibe-code or build my own Lumar clone from scratch?+

Our build verdict for Lumar is NOT REALLY (use a free alternative, save the tokens). A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Lumar, run a limited technical crawl and maintain an auditable issue history. The hard boundary is enterprise crawl scale, monitoring, analytics, governance, and consulting support, plus crawl scale, rule depth, and operational polish.

What is the catch when switching from Lumar to SiteOne Crawler?+

It is a local single-machine crawler with no managed team collaboration, durable cloud history or enterprise operations layer.